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G. GOING.

TYPE WRITING MACHINE.

AFPLICATIGN FILED MAR. 31. 1916 Patenfed May 27, 1919.

2 SHEETS-SHEET l.

a i I- I TIL t I W I a G. G. GOING.

TYPE WRITING MACHINE.

APPLICATION FILED MAR. 3I| I916- r N l ,3@5,@91 Patented my 24', 1919 WITNESSES: IAH/EIVTOR l nmwnwws:

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Specification of Etettei's Patent.

Application filed march 31, 1916. Serial No. 8?;911.

To aZZ whom it mcyconccm:

do it known that Z, Gnoncn Goon-n GOING, a citizen of the United residing at Middletown, in the county 01"" Middlescx and State of Connecticut, have invented certain new and useful Improvements in Typelfi riting lllachines, of which the following is a full, clear, and exact description, such'as will enable others skilled in the art to which it ap} )e1'tains to make and use the same.

This invention relates to typewriting machines, and more particularly to improved type actions therelon One of the objects of the invention is provide an cflicient construction of parts associated to transmit movement from a character key to a movable type carrier.

A further object is to correlate the elements of the type action witl" the universal tures of the t pevziiting machine to insure permanently reliable cooperation and to perinit expeditious adjustment.

Other objects and advantages will in part he noted in connection with the description of an en'ihodiment of the invention illustrated in the accompanying drawings, wherein-- Figure l is a fragmentary sectional view of a typeivi-iting machine, indicating palticulai-lv the t sin of connections between one opevat' Q key and its type carrier;

Fig. 2 is a fragmentary plan view of co:- tain parts of the type action; and

Fig. 3 is a perspective view of certain pow(an-transmitting elements in the conncction one type carries.

The invention is shown in the various as incoroorated in a Noiseless tr psto understood however, that "features of the invention are also 1 use with other styles o1 n1aci'mned I 5 and terminate their torn/and ends in bar, escapement mechanism and other ffeato which it is aiticulai'ly appii cnaracter caps 6. The keys are guided in their vertical movement by a comb member 7 arranged adjacent the keyboard and are limited in up position by a silent stop 8 and in down position by a similar stop 9 located below an offset extension 10 integral with the more rigid portion 11 of the key lever. The lovers are normally held elevated by individual reti'actile springs 12 tensioned between a depending lug 13 adjacent the fulcrum of each lever and a floating link plate ls adjustable by a movement of a tie link 1''.

Type carriers 16 are arranged radially in advance of the platen 2 and mounted to re- 1 1. cipx'ocatc hetveen bed plates 17. The connection between the key level and the type carrier includes a pull Wire 18 fastened to the former and extending vertically to a pivotal connection with a rocking lever 19 fulcruincd at its rear extremity to he depending arm of a bracket 20 mounted for fore and aft adjustment on a curved front piece 21 of the machine frame, The lever 19 is provided with a curved lower edge to engage, by a heel and toe or rocking moveinent, with the curved upper edge of a horizontally extending short arm of a skeleton bell crank lever 23 pivoted on bracket 26. The long arm of said bell crank levee :xtends vertically and is fulcrum-ed medially to a short link 24. having; at its fore end a Weight 25 (for a purpose to he described), and pivoted at its rear end to the short arm 26 of a "if-shaped lever 27 having a fixed axis on the bracket 20 atone end and pivotally connected at its other end with a skeleton link '28, in turn pivoted to an intermediate point of the type carrier 16. The construc tion of the hell crank lever 23 the arm 2% and l: 27 and link 28 is such that, upon aetuati on of the key lGVBB. to effect printing the long hell crank aini overlaps the are: 26 of the lever 27, and the top arm of th 'Y-shaped lever 27 is alinenient with. the link 28 whereby these parts form two strai htcncd toggles to limit the movement of the type carrier toward the platen and to control the speed and pressure of such move inent as will appear.

A li-shapod skeleton. universal ha? 29 pivotallsupported by a piui'ali y oi parallel links and pivotally attached to the rear end of levers 31 keyed or fixed to a rock shaft 32 having a depending lever 33, the end of which is connected by a link 34: to the escapement mechanism 3. The universal bar 29 is arranged for actuation by a straddlin piece 35 loosely swiveled on the short arm. 22 of the bell crank lever 23 in such relation that, as the rocking lever 19 is pulled downward by the key lever, the escapement mechanism is actuated immediately prior to the termination of the printing movement of the type carrier, but so shortly prior that the inertia of the traveling carriage insures rest of the platen until the printlng is efi'ected; I

The bell crank lever 23 is normally urged to the position shown in Fig, 1 by a retractile coil spring 36 tensioned between the bracket 20 and the short'arm 22 of the lever. .ln order to further hasten the rebound of the type carrier after, printing is effected the bell crank ofiset arm 37 movable upward into engagement with a resilient silencing pad 38. The position of the key lever stop 9 is such as to arrest depression of the key prior to the ctt'ection of the printing operation. The final printing movement of the type carrier is accordingly from the key lever, and is performed by the weight 25, which stores reserve energy in its initial movement and rapidly and forcefully converts such energy into a straightening of the toggles mentioned in the type action, to transmit a relatively great printing pressure to the type carrier, but at relatively slow speed, a characteristic of the Noiseless machine.

The structure of the type action is shbwn more in detail in Fig, 3, wherein the bell crank lever is represented as comprising spaced coincident portions straddling the bracket 20 and adapted to straddle also the d0ublecT-lever 27. j

The mounting of the rocking lever 19, bell crank lever 23, and associated T-lever 27 all on the bracket 20 insures permanent adjustment of these parts, While permitting, by fore and aft movement of said bracket, pressureand distance-equalizing adjustment of the type carrier. The rocking, engagement otthe lever 19 and short arm 22 of bell crank lever also provides a creepin point of contact in substantially a horizonta -l line to maximize the power leverage during initial depression of the key lever and thereafter increase the speed of the type carrier toward the platen. The mechanical noni'onnection between these levers furthe permits their separation while the printing is affected and insures a retractive rebound of the type carrier immediately thereafter sufficient to clear the type bed 17 for advancement of the next type carrier actuated, even though instant elevation of the former key lever is provided with a third,

independent of direct force 7 means permitting lever is not attained. This arrangement renders the machine capable oi nigh speed operation.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the siope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a typewriting machine, in combination, a type carrier, an actuating key there for, operative connecting means between said elements for moving the former to. a predetermined limit to effect printin said means including three sub-levers l aving spaced axes of motion,

a common adjustable hanger on which said sub-levers are pivoted,

and means permitting adjustment of said hanger for varying the limit of movement of said carrier whereby said adjustment mitted without disturbing the relation of said sub-levers. Y

2. In a typewriting machine, in combination, a type carrier, an actuating key lever therefor, an operative train of connection between said elements to -.move the former to a predetermined limit for effectin printing, said means including a pair or sub-levers having rocking engagement upon actuation of said key lever and movablerelatively out of engagement after arrest of said key lever, a common adjustable hanger on which said sub-levers are pivoted, and adjustment of said hanger for varying the limit of movement of said carrier whereby such variation is permitted without disturbing the relation of said sublevers.

3. In a typewriting machine, in combination, a type carrier, an actuating key le ier therefor, operative connecting means between said elements, including 'two sublevers having lost motion connection, and a unitary levers mounted for adjustment in one direc tion, said means'also including a link pivotally connecting one of said sub-levers and said key lever and disclosed at substantially right angles to the direction of adjustability of said bracket. v

4. In a ,typewriting machine, in combination, a type carrier, an actuating-key lever therefor, operative connecting means between said elements, including'a pair of sublevers having rocking engagement upon ac is persupporting bracket for said sub-' tion, a type carrier, an actuating key lever therefor, operative connecting means between said elements, including two pivoted sub-levers having rocking engagement, one of said sub-levers being connected with said key and having its pivotal axis located in horizontal alinement with the pivotal axis of the other, and a unitary forked bracket having arms on which said sub-levers are mounted.

6. In a typewriting maclime, in combination, a rectilinearly movable type carrier, a pivoted actuating key therefor, a pull member attached to the latter, a thrust member attached to the former, three sub-levers, in cluding a bell crank lever, operatively connecting said members, and a single support in bracket for said sub-levers.

In a typewriting machine, in combination, a rectilinearly movable type carrier, an actuating key therefor, operative connecting means between said elements, including two sub-levers having a lost motion connection,

and a stamped metal bracket support forsaid sub-levers having spaced arms at the extremities of which said sub-levers are pivoted, one of said sub-levers straddling its supporting arm and the suppoiting arm for the other being offset to aline the latter sub-lever with the first.

8. In a typewriting machine, in. combination, a rectilinearly movably type carrier, an actuating key therefor, operative connecting means between said elements, including two said spaced arms thereof.

sub-levers having a lost motion connection, and a bracket support for said sub-levers having spaced arms at the extremities of which said sub-levers are pivoted, and between which said sub-levers are normally positioned.

9., In a typewriting machine, in combination, a type carrier, an actuating key there'- for, operative connecting means between said elements, including two sub-levers having rocking engagement, and a bracket support f 1' said sub-levers having two depend ing spaced arms with relatively ofl'set extremities on which said sub-levers are piV-.

otcd, and having a third arm for attachment to a rigid part. I 0 10. In a typewriting machine, 1n combination, a type carrier, an actuating key therefor, operative connecting means'between said elements, including two sublevershaving a lost motion connection, a bracket support for said sub-levers having spaced arms on which said sub-levers are pivoted and between which said sub-levers are normally positioned, and a coil return spring for one of said sub levers attached to said support and also positioned between In testimony whereof I flix my signature, in the presence of two witnesses.

GEORGE GOULD GOING. /Vitnesses p D. B. Wns'rm, ERENA K. ALLEN. 

